feat: ship v0.8.0 with writing logs and AI knowledge extraction

Deliver P5.2 writing day logs, cockpit heatmap, streak tracking, and chapter knowledge auto-extraction with merge review.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/renderer/stores/useKnowledgeStore.ts

@@ -32,6 +32,10 @@ interface KnowledgeState {
   approve: (bookId: string, id: string) => Promise<void>
   reject: (bookId: string, id: string) => Promise<void>
   batchApprove: (bookId: string, ids: string[]) => Promise<void>
+  extractChapter: (bookId: string, chapterId: string) => Promise<void>
+  approveMerge: (bookId: string, pendingId: string) => Promise<void>
+  saveMergeAsNew: (bookId: string, pendingId: string) => Promise<void>
+  batchApproveHighConfidence: (bookId: string, threshold?: number) => Promise<void>
   filteredEntries: () => KnowledgeEntry[]
 }
 
@@ -82,6 +86,22 @@ export const useKnowledgeStore = create<KnowledgeState>((set, get) => ({
     await ipcCall(() => window.electronAPI.knowledge.batchApprove(bookId, ids))
     await get().load(bookId)
   },
+  extractChapter: async (bookId, chapterId) => {
+    await ipcCall(() => window.electronAPI.knowledge.extractChapter(bookId, chapterId))
+    await get().load(bookId)
+  },
+  approveMerge: async (bookId, pendingId) => {
+    await ipcCall(() => window.electronAPI.knowledge.approveMerge(bookId, pendingId))
+    await get().load(bookId)
+  },
+  saveMergeAsNew: async (bookId, pendingId) => {
+    await ipcCall(() => window.electronAPI.knowledge.saveMergeAsNew(bookId, pendingId))
+    await get().load(bookId)
+  },
+  batchApproveHighConfidence: async (bookId, threshold) => {
+    await ipcCall(() => window.electronAPI.knowledge.batchApproveHighConfidence(bookId, threshold))
+    await get().load(bookId)
+  },
   filteredEntries: () => {
     const { entries, tab, forgottenOnly } = get()
     let list = entries

src/renderer/stores/useSettingsStore.ts

@@ -24,6 +24,8 @@ export const useSettingsStore = create<SettingsState>((set, get) => ({
   namingIgnoreWords: [] as string[],
   knowledgeAutoSuggest: true,
   knowledgeSuggestTopN: 8,
+  knowledgeAutoExtract: true,
+  knowledgeExtractConfidenceThreshold: 0.8,
   loaded: false,
   load: async () => {
     const data = await ipcCall(() => window.electronAPI.settings.get())

src/renderer/stores/useWritingStatsStore.ts

@@ -0,0 +1,16 @@
+import { create } from 'zustand'
+import type { WritingStats } from '@shared/types'
+import { ipcCall } from '@renderer/lib/ipc-client'
+
+interface WritingStatsState {
+  stats: WritingStats | null
+  refresh: (bookId: string) => Promise<void>
+}
+
+export const useWritingStatsStore = create<WritingStatsState>((set) => ({
+  stats: null,
+  refresh: async (bookId) => {
+    const stats = await ipcCall(() => window.electronAPI.writing.getStats(bookId))
+    set({ stats })
+  }
+}))